| 14th Jan 2019 4:41 pm | 
                                            RNS | 
                                            Second Price Monitoring Extn | 
                                        
                                                                            
                                            | 14th Jan 2019 4:36 pm | 
                                            RNS | 
                                            Price Monitoring Extension | 
                                        
                                                                            
                                            | 11th Dec 2018 7:00 am | 
                                            RNS | 
                                            Pre-Close Operational Update | 
                                        
                                                                            
                                            | 3rd Dec 2018 3:00 pm | 
                                            RNS | 
                                            Block Admission Return | 
                                        
                                                                            
                                            | 17th Oct 2018 7:00 am | 
                                            RNS | 
                                            Investor Conference Call | 
                                        
                                                                            
                                            | 11th Oct 2018 7:00 am | 
                                            RNS | 
                                            Prospect S Well Result, Namibia | 
                                        
                                                                            
                                            | 1st Oct 2018 4:00 pm | 
                                            RNS | 
                                            Commencement of Drilling of Prospect S Well | 
                                        
                                                                            
                                            | 28th Sep 2018 7:00 am | 
                                            RNS | 
                                            Commencement of Drilling Operations | 
                                        
                                                                            
                                            | 12th Sep 2018 7:00 am | 
                                            RNS | 
                                            H1 2018 Results | 
                                        
                                                                            
                                            | 3rd Sep 2018 7:00 am | 
                                            RNS | 
                                            Appointment of Director | 
                                        
                                                                            
                                            | 6th Aug 2018 1:00 pm | 
                                            RNS | 
                                            Grant of Share Awards | 
                                        
                                                                            
                                            | 24th Jul 2018 10:57 am | 
                                            RNS | 
                                            Result of AGM | 
                                        
                                                                            
                                            | 24th Jul 2018 7:00 am | 
                                            RNS | 
                                            AGM Statement | 
                                        
                                                                            
                                            | 23rd Jul 2018 11:54 am | 
                                            RNS | 
                                            Mauritanian New Venture Back-in Option with Shell | 
                                        
                                                                            
                                            | 22nd Jun 2018 7:00 am | 
                                            RNS | 
                                            Posting of Annual Report and Notice of AGM | 
                                        
                                                                            
                                            | 15th Jun 2018 3:00 pm | 
                                            RNS | 
                                            Grant of Deferred Share Awards | 
                                        
                                                                            
                                            | 6th Jun 2018 7:00 am | 
                                            RNS | 
                                            2017 Final Results | 
                                        
                                                                            
                                            | 4th Jun 2018 7:00 am | 
                                            RNS | 
                                            Operational Update | 
                                        
                                                                            
                                            | 1st Jun 2018 3:00 pm | 
                                            RNS | 
                                            Block Admission Application and Return | 
                                        
                                                                            
                                            | 30th Apr 2018 7:00 am | 
                                            RNS | 
                                            Operational Update | 
                                        
                                                                            
                                            | 29th Mar 2018 4:12 pm | 
                                            RNS | 
                                            Notification of Transaction of PDMR | 
                                        
                                                                            
                                            | 29th Mar 2018 10:06 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 28th Mar 2018 9:25 am | 
                                            RNS | 
                                            Notification of Transaction of PDMR | 
                                        
                                                                            
                                            | 28th Mar 2018 8:01 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 27th Mar 2018 10:40 am | 
                                            RNS | 
                                            Result of General Meeting and Total Voting Rights | 
                                        
                                                                            
                                            | 27th Mar 2018 7:00 am | 
                                            RNS | 
                                            Result of Open Offer | 
                                        
                                                                            
                                            | 14th Mar 2018 9:23 am | 
                                            RNS | 
                                            Commencement of Drilling of Rabat Deep 1 Well | 
                                        
                                                                            
                                            | 6th Mar 2018 7:00 am | 
                                            RNS | 
                                            Posting of Circular | 
                                        
                                                                            
                                            | 27th Feb 2018 8:24 am | 
                                            RNS | 
                                            Mobilisation of the Saipem 12000 drillship | 
                                        
                                                                            
                                            | 27th Feb 2018 7:00 am | 
                                            RNS | 
                                            Conditional Placing, Open Offer & Notice of GM | 
                                        
                                                                            
                                            | 26th Feb 2018 9:37 am | 
                                            RNS | 
                                            Statement regarding media speculation | 
                                        
                                                                            
                                            | 13th Dec 2017 7:00 am | 
                                            RNS | 
                                            Pre-Close Operational Update | 
                                        
                                                                            
                                            | 11th Dec 2017 11:20 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 1st Dec 2017 2:00 pm | 
                                            RNS | 
                                            Block admission return | 
                                        
                                                                            
                                            | 13th Sep 2017 7:00 am | 
                                            RNS | 
                                            H1 2017 Results | 
                                        
                                                                            
                                            | 7th Sep 2017 7:00 am | 
                                            RNS | 
                                            Morocco - rig | 
                                        
                                                                            
                                            | 29th Aug 2017 7:00 am | 
                                            RNS | 
                                            Namibia 2714 Update | 
                                        
                                                                            
                                            | 4th Aug 2017 2:36 pm | 
                                            RNS | 
                                            Grant of Share Awards | 
                                        
                                                                            
                                            | 4th Aug 2017 2:00 pm | 
                                            RNS | 
                                            Grant of Share Awards | 
                                        
                                                                            
                                            | 13th Jun 2017 10:53 am | 
                                            RNS | 
                                            Result of AGM |